Non-metallic construction materials, namely mortars, concretes and cements, all for building; mortars and cements made of calcium aluminate aggregates for use in the lining and protection of sewage networks; Non-metallic building materials, namely, aggregates composed of calcium aluminates for use in the manufacture of mortars, concretes and cements; calcium aluminate cements; sealing materials, namely, sealing mortars for building, concretes and cements for sealing

composite manhole covers for sewers; non-metallic manhole covers for sewers

Bacillus and other microbes suspended in powdered or liquid form for sanitation, odor control and wastewater treatment applications

Protection mortars for sanitation networks

mortar for repair of sewer structures